Peerless SDS-P830657 6½" Midwoofer

Name: Peerless SDS-P830657 6½" Midwoofer
Brand: Tymphany
SKU: SDS-164 P830657
Price: 24.6 GBP
Availability: InStock
Rating: 4.0 (1 reviews)

£24.60

UK STOCK ITEM

The Peerless SDS-P830657 is an 6½ inch 8 ohm midwoofer from the highly regarded SDS series featuring a coated paper cone with inverted dust cap, a fully ventilated cropped steel chassis and a ferrite magnet system. Works very well with a simple LR2 crossover + 6Khz LCR notch filter. Those with sharp eyes may spot this drive unit in some £2K+ mainstream designs.

Also known as the SDS-164.

Key Features:

Coated paper pulp cone.
Cropped chassis for narrow tower style cabinets.
Low loss rubber surround.
Fully vented pressed steel chassis.
Very smooth through the passband.
Excellent value.

Basic parameters:

Resonant frequency (fs)	44.7 Hz	Nominal impedance (Zn)	8 Ω
Mechanical Q factor (Qms)	2.74	DC resistance (Re)	6.05 Ω
Electrical Q factor (Qes)	0.55	Max power handling	60 W
Total Q factor (Qts)	0.46	Sensitivity (2.83V/1m)	89.4dB
Equivalent volume (Vas)	30.77L	Chassis diameter (cropped)	182mm

Here's the full datasheet:

Surprisingly good..

I have used a lot of these in the past. They are not quite up to the M16NH for smoothness of response, but you can tame the 6k bump by adding a zoble network to the crossover and more importantly putting sound deadening (butyl or bitumen pads as used in the automotive industry) on the frame. It's a bit fiddly, but it seemed to reduce ringing, which may or may not be part of that 6k bump.
The response I measured was closer to the blue curve shown in the response graph.
These work well in a transmission line paired with a D27TG35-06. Don't be put off by the 44hz FS, these dig down very deep when used in the right cabinet. The clean roll off from 100hz means room gain doesn't cause too much bass boom.
Tonally these have a nice warm but detailed sound with a richness to vocals that is pleasing to the ear.

Thankyou for your review Patrick!
Will & Caroline

Peerless SDS-P830657 6½" Midwoofer

Key Features:

Basic parameters:

Here's the full datasheet:

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Peerless SDS-P830657 6½" Midwoofer

Key Features:

Basic parameters:

Here's the full datasheet:

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